Review of Rice Production under Conservation Tillage on Double Rice Paddy Soil in Hunan Province

摘要

According to complex characteristics of cropping system, soil type and stubble use in Hunan province, the pattern and economic benefit of minimum tillage (MT) or zero tillage (ZT) on double rice paddy soil in Hunan Province was stated in the paper. The mechanism how MT or ZT increase the yield of rice was analyzed. Finally, the measurement was put forward pointing to the present situation and the problems existing in current production.